I'm surprised that the Dart and Crab syntheses ended up so low. They seemed like such a big deal at the time. The construction of small spaceships has always been one of the most sought after results in glider synthesis research, and these patterns represented a significant advance in that technology. By comparison, the synthesis of 25P3H1V0.2 seemed to do better in 2017. I wonder if they would have done better had the competition been held back in 2015.